3965321608 has 16 divisors (see below), whose sum is σ = 7484218560. Its totient is φ = 1969530000.

The previous prime is 3965321551. The next prime is 3965321609. The reversal of 3965321608 is 8061235693.

It is not an unprimeable number, because it can be changed into a prime (3965321609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1640068 + ... + 1642483.

It is an arithmetic number, because the mean of its divisors is an integer number (467763660).

Almost surely, 2^3965321608 is an apocalyptic number.

It is an amenable number.

3965321608 is a deficient number, since it is larger than the sum of its proper divisors (3518896952).

3965321608 is a wasteful number, since it uses less digits than its factorization.

3965321608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3282708 (or 3282704 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 43.

The square root of 3965321608 is about 62970.7996455500. The cubic root of 3965321608 is about 1582.8003545143.

The spelling of 3965321608 in words is "three billion, nine hundred sixty-five million, three hundred twenty-one thousand, six hundred eight".